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1. Anadenanthera colubrina (Vell) Brenan: Ethnobotanical, phytochemical, pharmacological and toxicological aspects

Author:
Merline Delices; Jessica de Araujo Isaias Muller; Karuppusamy Arunachalam; Domingos Tabajara de Oliveira Martins
Source:
Journal of ethnopharmacology 2023 v.300 no. pp. 115745
ISSN:
0378-8741
Subject:
South America,   etc   ; Anadenanthera colubrina; National Center for Biotechnology Information; antioxidants; antiviral properties; bark; databases; environmental impact; ethnobotany; flavonoids; herbal medicines; indigenous species; insecticides; mechanism of action; therapeutics; toxicity; toxicology; traditional medicine; trees; triterpenoids;     Show all 20 Subjects
Abstract:
... Anadenanthera colubrina (Vell.) Brenan is an endemic tree to South America and different parts of it are used by the population for the treatment of various diseases, as well as in indigenous rituals. This species has high pharmacological potential but may present toxic potential due to the presence of psychotropic compounds. To review published studies with the species A. colubrina regarding ethn ...
DOI:
10.1016/j.jep.2022.115745

2. Gut-content analysis in four species, combined with comparative analysis of trophic traits, suggests an araneophagous habit for the entire family Palpimanidae (Araneae)

Author:
Stano Pekár; Lenka Petráková Dušátková; Táňa Macháčková; Ondřej Slabý; Luis F. García; Charles R. Haddad
Source:
Organisms, diversity, & evolution 2022 v.22 no.1 pp. 265-274
ISSN:
1439-6092
Subject:
South America,   etc   ; Araneae; diet; evolution; South Africa;     Show all 5 Subjects
Abstract:
... Spiders are among the most diversified and abundant predators in terrestrial ecosystems across the world, but information on their prey is limited. Particularly, there is paucity of data for prey-specialised species, such as palpimanid spiders. Here we investigated the trophic strategy of four palpimanid species (Diaphorocellus biplagiatus, Otiothops birabeni, Palpimanus gibbulus, and P. potteri) ...
DOI:
10.1007/s13127-021-00525-9

3. Institutional timberland investment in South and Central America

Author:
Daowei Zhang
Source:
Forest policy and economics 2022 v.135 pp. 102663
ISSN:
1389-9341
Subject:
South America,   etc   ; economics; forest policy; Central America;     Show all 4 Subjects
Abstract:
... In this paper I investigate the origins, trend, and drivers of institutional timberland investment in South and Central America. I note that domestic institutions in South America are a distinctive source of, and a significant contributor to, the rise of institutional timberland investment in the world in the last six-plus decades. I further show that foreign institutions have increased their timb ...
DOI:
10.1016/j.forpol.2021.102663
CHORUS:
10.1016/j.forpol.2021.102663

4. Sensitivity to Mass Changes of Lakes, Subsurface Hydrology and Glaciers of the Quantum Technology Gravity Gradients and Time Observations of Satellite MOCAST+

Author:
Tommaso Pivetta; Carla Braitenberg; Alberto Pastorutti
Source:
Remote Sensing 2022 v.14 no.17 pp. -
ISSN:
2072-4292
Subject:
South America,   etc   ; gravity; hydrology; instrumentation; satellites; China;     Show all 6 Subjects
Abstract:
... The quantum technology absolute gravimeters, gradiometers, and clocks are at the forefront of the instrumentation to be exploited in a future gravity mission (the QSG mission concept). Apart from the quantum payload, the mission design defines the choice of the number of satellites and the satellite orbit constellation, with the goal of optimizing the observation of the earth’s gravity field and r ...
DOI:
10.3390/rs14174278

5. Are some species ‘robust’ to exploitation? Explaining persistence in deceptive relationships

Author:
Amy L Brunton-Martin; James C O’Hanlon; Anne C Gaskett
Source:
Evolutionary ecology 2022 v.36 no.3 pp. 321-339
ISSN:
0269-7653
Subject:
South America,   etc   ; flowers; males; pollination; spermatozoa; Australasian region;     Show all 6 Subjects
Abstract:
... Animals and plants trick others in an extraordinary diversity of ways to gain fitness benefits. Mimicry and deception can, for example, lure prey, reduce the costs of parental care or aid in pollination–in ways that impose fitness costs on the exploited party. The evolutionary maintenance of such asymmetric relationships often relies on these costs being mitigated through counter-adaptations, low ...
DOI:
10.1007/s10682-022-10174-9

6. Evaluation of CMIP6 models in the representation of observed extreme temperature indices trends in South America

Author:
Soledad Collazo; Mariana Barrucand; Matilde Rusticucci
Source:
Climatic change 2022 v.172 no.1-2 pp. 21
ISSN:
0165-0009
Subject:
South America,   etc   ; climate change; cold; databases; spring; temperature;     Show all 6 Subjects
Abstract:
... The consequences of climate change are particularly noticeable through extreme events, which have already changed in intensity and frequency worldwide. This study aims to evaluate the ability of 33 CMIP6 models to simulate the observed trends of four extreme temperature indices in South America during the period 1979–2014. We use daily minimum and maximum temperatures from an observational databas ...
DOI:
10.1007/s10584-022-03376-1

7. Convection-permitting modeling strategies for simulating extreme rainfall events over Southeastern South America

Author:
Martín Feijoó; Silvina Solman
Source:
Climate dynamics 2022 v.59 no.9-10 pp. 2549-2569
ISSN:
0930-7575
Subject:
South America,   etc   ; climate; dynamics; evolution; model validation; rain; topography;     Show all 7 Subjects
Abstract:
... A set of six convection-permitting (CP) domain configurations were implemented to perform 72-hour long simulations of three extreme precipitation events over Southeastern South America (SESA). The goal of the study is to determine the most adequate configuration for reproducing not only the rainfall evolution and intensity, but also the synoptic triggering mechanisms that led to these extreme even ...
DOI:
10.1007/s00382-022-06226-z

8. Comparative analysis of the mitogenomes of two Corydoras (Siluriformes, Loricarioidei) with nine known Corydoras, and a phylogenetic analysis of Loricarioidei

Author:
Cheng-He Sun; Qi Huang; Xiao-Shu Zeng; Sha Li; Xiao-Li Zhang; Ya-Nan Zhang; Jian Liao; Chang-Hu Lu; Bo-Ping Han; Qun Zhang
Source:
ZooKeys 2022 v.1083 pp. 89-107
ISSN:
1313-2970
Subject:
South America,   etc   ; Corydoras; catfish; codon usage; mitochondrial genome; phylogeny;     Show all 6 Subjects
Abstract:
... AbstractCorydoras is a speciose catfish genus from South America with widely investigated phylogenetic and evolutionary relationships. The complete mitogenomes of C. aeneus and C. paleatus were sequenced, assembled, and annotated using next-generation sequencing. The genome arrangements, gene contents, genome structures, base compositions, evolutionary features, codon usage, and tRNA structures o ...
DOI:
10.3897/zookeys.1083.76887

9. High-density production of Southern King Crab (Lithodes santolla) juveniles in the field for stock enhancement

Author:
M. Paula Sotelano; M. Belén Reartes; Gustavo A. Lovrich; Federico Tapella
Source:
Aquaculture 2022 v.551 pp. 737897
ISSN:
0044-8486
Subject:
South America,   etc   ; Lithodes santolla; aquaculture; crabs; gastronomy; juveniles; tourism;     Show all 7 Subjects
Abstract:
... The Southern King Crab -SKC- (Lithodes santolla) is a highly demanded gastronomic resource in South America, specially from tourism. As many others crab fisheries, the current state of L. santolla's population in the Beagle Channel is compromised, since the production of new recruits is below its potential. In this sense and in order to overcome this limitation, late efforts have been directed tow ...
DOI:
10.1016/j.aquaculture.2022.737897

10. Surface and atmospheric patterns for early and late rainy season onset years in South America

Author:
Isabella L. Talamoni; Iracema F. A. Cavalcanti; Paulo Y. Kubota; Dayana C. de Souza; Jessica C. A. Baker; Rita M. S. P. Vieira
Source:
Climate dynamics 2022 v.59 no.9-10 pp. 2815-2830
ISSN:
0930-7575
Subject:
South America,   etc   ; advection; climate; convection; dynamics; weather; wet season;     Show all 7 Subjects
Abstract:
... The biosphere–atmosphere interactions associated with the rainy season onset in South America (SA) are not well understood. This study aimed to analyze the atmospheric and surface patterns associated with early, neutral, and late rainy season onset in tropical regions of SA. The following years represented each rainy season onset: 1998, 2006, 2009 (early), 2001, 2004, 2005 (neutral), 2000, 2007, 2 ...
DOI:
10.1007/s00382-022-06234-z

11. Genetic control of barley phenology in South American environments

Author:
Andrés Locatelli; Mahdav Bhatta; Lucía Gutiérrez; Nicolás Mastandrea; Luis Viega; Ariel Julio Castro
Source:
Euphytica 2022 v.218 no.5 pp. 53
ISSN:
0014-2336
Subject:
South America,   etc   ; barley; cold season; genomics; genotyping; germplasm; phenology;     Show all 7 Subjects
Abstract:
... Phenology is one of the most relevant traits for crop development since the duration and timing of plant developmental phases has direct consequences for yield potential. The relative timing of development is even more important in temperate conditions where cool season crops are planted under short days. Our objective was to identify the genomic regions associated with phenology in barley germpla ...
DOI:
10.1007/s10681-022-02993-2

12. Thermal responses of some Australian cicadas (Insecta: Hemiptera: Cicadidae)

Author:
Maxine S. Heath; James E. Heath; Allen F. Sanborn
Source:
Journal of thermal biology 2022 v.105 pp. 103221
ISSN:
0306-4565
Subject:
South America,   etc   ; Cicadidae; habitats; phylogeny; Africa; Europe; North America;     Show all 7 Subjects
Abstract:
... We determine the thermal responses for 22 species from 16 genera, nine tribes and two subfamilies of Australian cicadas. Thermal responses are related to habitat and possibly to behavior. The thermal responses of the Australian species show convergent patterns to the cicadas in similar environments in Africa, Europe, North America, and South America. The study illustrates that similar evolutionary ...
DOI:
10.1016/j.jtherbio.2022.103221

13. An attention-based U-Net for detecting deforestation within satellite sensor imagery

Author:
David John; Ce Zhang
Source:
International journal of applied earth observation and geoinformation 2022 v.107 pp. 102685
ISSN:
1569-8432
Subject:
South America,   etc   ; data collection; deforestation; forests; satellites; spatial data; Amazonia;     Show all 7 Subjects
Abstract:
... In this paper, we implement and analyse an Attention U-Net deep network for semantic segmentation using Sentinel-2 satellite sensor imagery, for the purpose of detecting deforestation within two forest biomes in South America, the Amazon Rainforest and the Atlantic Forest. The performance of Attention U-Net is compared with U-Net, Residual U-Net, ResNet50-SegNet and FCN32-VGG16 across three differ ...
DOI:
10.1016/j.jag.2022.102685

14. The conservation of non-marine molluscs in South America: where we are and how to move forward

Author:
Igor C. Miyahira; Cristhian Clavijo; Claudia T. Callil; María Gabriela Cuezzo; Gustavo Darrigran; Suzete R. Gomes; Carlos A. Lasso; Maria Cristina D. Mansur; Meire S. Pena; Rina Ramírez; Rogério C. L. dos Santos; Sonia B. dos Santos; Fabrizio Scarabino; Santiago H. Torres; Roberto E. Vogler; Robert H. Cowie
Source:
Biodiversity and conservation 2022 v.31 no.11 pp. 2543-2574
ISSN:
0960-3115
Subject:
South America,   etc   ; biodiversity; conservation status; fauna; inventories; politics; researchers; taxonomy;     Show all 8 Subjects
Abstract:
... South America is a high biodiversity continent with five out of 13 countries considered megadiverse. Many major groups within this fauna exhibit high diversity, including non-marine molluscs. With at least 1401 known species, South American molluscs are seriously understudied. The aim of this paper is to review the conservation status of non-marine molluscs in South America, pointing out significa ...
DOI:
10.1007/s10531-022-02446-1

15. Seismic Waveform‐Coherence Controlled by Earthquake Source Dimensions

Author:
Tong Zhou; Lingsen Meng; Ailin Zhang; Jean‐Paul Ampuero
Source:
Journal of geophysical research 2022 v.127 no.5 pp. e2021JB023458
ISSN:
2169-9313
Subject:
South America,   etc   ; Japan; earthquakes; geophysics; models; research; subduction; Okhotsk Sea;     Show all 8 Subjects
Abstract:
... Rupture size is a fundamental earthquake source parameter that is challenging to infer independently from far‐field seismological observations. Here, we develop a novel observational constraint on source size based on the decay rate of wavefield coherence across a seismic array. For a given earthquake, waveform coherence decays with increasing interstation distance or, more precisely, with increas ...
DOI:
10.1029/2021JB023458

16. Disentangling the role of the Pacific and Atlantic Oceans during the Amazonian droughts in 2015

Author:
Vanúcia Schumacher; Flávio Justino; Noele F. Leonardo; Marcos P. Pereira
Source:
Theoretical and applied climatology 2022 v.148 no.3-4 pp. 1057-1067
ISSN:
0177-798X
Subject:
South America,   etc   ; El Nino; basins; climate; climatology; drought; forests; Pacific Ocean;     Show all 8 Subjects
Abstract:
... El Niño events lead to worldwide changes in the inter-annual variability of precipitation, and more in particular to South America droughts. In the year 2015, El Niño leads to extremely dry conditions over the Amazon Basin. Based upon climate simulations conducted with the CCM3-IBIS and SPEEDY-Vegas, coupled climate-vegetation models, the impacts of the 2015 Pacific and Atlantic SSTs on drought ov ...
DOI:
10.1007/s00704-022-03998-6

17. Fire and vegetation: Introduction to the special issue

Author:
Fernando A.O. Silveira; Davi R. Rossatto; Hermann Heilmeier; Gerhard E Overbeck
Source:
Flora 2022 v.286 pp. 151985
ISSN:
0367-2530
Subject:
South America,   etc   ; biodiversity conservation; climate change; ecosystems; flora; social welfare; vegetation;     Show all 7 Subjects
Abstract:
... Fires are widespread disturbance events with many implications for different aspects of plant persistence and vegetation properties. Changing fire regimes can profoundly affect vegetation dynamics and ecosystem properties. Recent steep increases in the frequency of fires worldwide and the occurrence of megafires have caught the attention of scientists, policymakers, and the media. The FLORA Specia ...
DOI:
10.1016/j.flora.2021.151985

18. Fall pre-migratory staging areas of Roseate Terns (Sterna dougallii) in northeastern North America, 1971–2020

Author:
Jonathan L. Atwood
Source:
Wilson journal of ornithology 2022 v.134 no.1 pp. 124-132
ISSN:
1559-4491
Subject:
South America,   etc   ; fledglings; ornithology; Massachusetts; New York; Northwest Atlantic; Nova Scotia;     Show all 7 Subjects
Abstract:
... Efforts to protect the endangered northwest Atlantic population of Roseate Tern (Sterna dougallii) have typically focused on a small number of breeding colonies distributed from Nova Scotia to New York. Yet the species is also potentially vulnerable at staging sites used by adults and recently fledged juveniles preparing for their southward migration to South America. My study found no evidence of ...
DOI:
10.1676/21-00014

19. Migratory behaviour does not alter cophylogenetic congruence between avian hosts and their haemosporidian parasites

Author:
Daniela de Angeli Dutra; Alan Fecchio; Érika Martins Braga; Robert Poulin
Source:
Parasitology 2022 v.149 no.7 pp. 905-912
ISSN:
1469-8161
Subject:
South America,   etc   ; host specificity; host-parasite relationships; migratory behavior; parasitology; phylogeny;     Show all 6 Subjects
Abstract:
... Parasites display various degrees of host specificity, reflecting different coevolutionary histories with their hosts. Avian hosts follow multiple migration patterns representing short but also long distances. As parasites infecting migratory birds are subjected to multiple environmental and biotic changes through their flyways, migration may disrupt or strengthen cophylogenetic congruence between ...
DOI:
10.1017/S0031182022000154

20. River flow response to deforestation: Contrasting results from different models

Author:
José A. Posada-Marín; Juan F. Salazar
Source:
Water Security 2022 v.15 pp. 100115
ISSN:
2468-3124
Subject:
South America,   etc   ; basins; deforestation; meta-analysis; river flow; water security; watersheds;     Show all 7 Subjects
Abstract:
... Forests are under pressure globally. How deforestation affects river flow is essential for water security in many regions. Here we conduct a meta-analysis of studies investigating this question in large basins of South America and show that different modeling approaches lead to opposite conclusions about deforestation effects on river flow. A widely used approach has been to use surface models whi ...
DOI:
10.1016/j.wasec.2022.100115